lopez also killed another person from mississippi. and nbc have learned the three were involved in a love triangle. all three worked at the officer candidates school. >>> tragedy in fairfield as an oakland boy drowns in a backyard pool. it happened about 11:30 this morning on howe court. the family had gone there to visit friends. the 7-year-old was found floating in the pool of he was pulled from the water by one of the residents who tried to revive the child by following cpr instructions from police dispatchers but the boy was pronounced dead. no foul play is suspected. >>> a 10-year-old boy is dead after a display board crashed down on him and his family at an airport in alabama. >> reporter: this is the 300 plus flight display sign that collapsed friday afternoon on to a mother and her four children in the birmingham shuttle's airport newly opened terminal. >> it is sad. very sad. >> reporter: the family from kansas city were all taken to the hospital where 10-year-old luke later died from his injuries. the accident occurred in th